build problem with patch level 1.5301

["S. Cowles" <scowles@ckhb.org>]

i have tried building patchlevel 1.5301 from cvs pulls (on various 
platforms) and get the error shown in the following excerpt of the build:


make[4]: Leaving directory `xx/origdist/zsh/zsh/Src/Zle'
Updated `zleparameter.mdh'.
echo 'timestamp for zleparameter.mdh against zleparameter.mdd' > zleparameter.mdhs
gawk -f ../../Src/makepro.awk zleparameter.c Src/Zle > zleparameter.syms
(echo '/* Generated automatically */'; sed -n '/^E/{s/^E//;p;}' < zleparameter.syms) \
                 > zleparameter.epro
(echo '/* Generated automatically */'; sed -n '/^L/{s/^L//;p;}' < zleparameter.syms) \
                 > `echo zleparameter.epro | sed 's/\.epro$/.pro/'`
make[4]: Entering directory `xx/origdist/zsh/zsh/Src/Zle'
make[4]: Leaving directory `xx/origdist/zsh/zsh/Src/Zle'
Updated `zleparameter.mdh'.
make[3]: Leaving directory `xx/origdist/zsh/zsh/Src/Zle'
make[2]: Leaving directory `xx/origdist/zsh/zsh/Src'
rm -f stamp-modobjs.tmp
make[2]: Entering directory `xx/origdist/zsh/zsh/Src'
gcc -c -I. -I../Src -I../Src -I../Src/Zle -I.  -DHAVE_CONFIG_H -Wall -Wmissing-prototypes -O2  -o builtin.o builtin.c
In file included from zsh.mdh:49:0,
                  from builtin.c:33:
mem.epro:5:35: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'last_heap_id'
mem.epro:15:48: error: expected ')' before 'heap_id'
make[2]: *** [builtin.o] Error 1
make[2]: Leaving directory `xx/origdist/zsh/zsh/Src'
make[1]: *** [modobjs] Error 2
make[1]: Leaving directory `xx/origdist/zsh/zsh/Src'
make: *** [all] Error 1